[MUSIC] Okay. In this final unit, we're going to talk about cognition and, and the results, the output from the cerebral cortex. And everything that the cerebral cortex does, we're going to call cognition. Remember that the cerebral cortex, all of this, is what dominates the human brain. And from the cerebral cortex comes action, our voluntary movements, perception, the way we interpret the world. Our emotion, our motivation, our executive function, which is an umbrella term for how we arrange our priorities and what we act on, how we interact with others, how we play well, hopefully, with others and thought. And we're going to focus on a few of these not all of them. Here is a, a really moving book by Howard Dully who as a child, without his own, without, him providing permission, underwent a lobotomy. In a and this was a a procedure that happened in a, in a, just in a regular medical office, not in a hospital. And he, interestingly, because he got it so young, he was actually able to recover a great deal of function. But the way in which this lobotomy affected him has everything to do with executive function. I, I recommend this book. It's, it's fascinating and it's moving. Fascinating and moving. Okay, but what we're going to do is start with emotion and move on we're going to spend a long time on memory, which I didn't list, but which is another part of cognition. We're going to spend a lot, long time on memory and we're going to touch on attention. And we're going to talk to you at the end on a form of executive function, playing well with others. Okay, so let's get started with emotion. [MUSIC]